Hello,
1.13 introduces a change to minecraft blocks. It's caused us a few issues, as it's also changed backend code - hence our many bugs after the update. But in CraftHeads case, our plugin's trying to catch up with the changes. The following are heads that are /not/ able to be made due to the changes in ID. We will attempt to fix it, but in the mean time, we'll have to make do.
Drop heads are a lot more difficult to calculate. So if anyone's gone hours without finding a head from a drop, let me know so I can put it on the list or try and increase the drop.
Craft Heads:
Crafts:
paper lantern
red candle lit
red candle unlit
iron lantern
red iron lantern
sealantern craft
firefly lamp
clear jar
black candle lit
black candle unlit
green lantern
purple lantern
orange lantern
cheese
chocolate muffin
hot chocolate
honey food (the 2nd honey pot works)
sack of saffron
jar of jelly
blue jam
orange jam
colored tea cup
colored cups
blueberry pie
absinthe
mead
sack of herbs
rosemary bread
folded clothes
ruby, blue, black chalices
chalice goblet
helmets
potted plants
colored vases
book stacks
purple medical box
green medical box
chess box
red chest furniture
treasurechest red, blue, green
ink vial
ink phial
backpacks
dragon breath
colored drum
red, white, black dice
jar brain
fun skullmask
white, brown teddy bear
chiseled quartz
column quartz
stone block
chiseled block
tombstone
jar of blood
red, blue, yellow, brown potions
Drops: Melon, Pumpkin